Czar also appears in a few flashbacks showing events at North Academy, such as one in episode 91, in which he defeats Lucien Grimley. He is usually seen in a rocking chair when not dueling, with Chazz calling him "Grandma" for this in the English dub.
Czar's personality can be described as arrogant at first. Being the top ranked Duelist in his school he feels that he can take on anyone and always win.
After his match with Chazz however, his personality changes and he becomes more soft-hearted as well as humbled, with him and the rest of North Academy fully supporting Chazz to the point of crying when Chazz decides to stay in Duel Academy.
In the English version, Czar speaks with a Russian accent.
In Russian, Czar's name means "emperor".
Czar plays a Zoa Deck, which focuses on the Summoning of the "Zoa" and its upgraded "Metalzoa" form.